🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 15, 2026) · next update tomorrow 6:00 am CDT
Ask: HAMs within 5 miles of N9TPB · Extra class operators in Madison, WI · or try N9TPB · K9* wildcards · Smith, John · 0004797601 (FRN) · 53703 · Madison, WI · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)
NP4BX HAM
✅ Available for a vanity request — free since Mar 6, 2021.
2x2 call: Advanced and Amateur Extra licensees can request it.
No pending applications list it.
Not currently held
· 1 holder on record
· available since Mar 6, 2021
Previous holder: Rosalina Mendoza
Held NP4BX Mar 14, 1989 → Mar 5, 2019
· first licensed Mar 14, 1989 as NP4BX
· 1 license · FRN 0001844083 📖 In the printed callbooks since 1985 as NP4BX, before the FCC's online records
NP4BXExpiredTechnicianMar 14, 1989 → Mar 5, 2019 (expired)
From the FCC amateur database as published on the QRZ! callsign CD-ROMs, 1993–2003, before and alongside the FCC's online records (which start in 1999). "Seen" dates are the first and last disc showing that record; the issue date is the FCC's, so it can be a renewal of an even older license.
Seen Apr 7, 1999 → Apr 17, 2003 · 9 discs NP4BX
· Technician Plus · issued Mar 5, 1999, expires Mar 5, 2009
ROSALINA MENDOZA
PO BOX 640, AGUADA, PR 00602
Seen Mar 9, 1998 → Nov 11, 1998 · 2 discs NP4BX
· Technician Plus · issued Mar 14, 1989, expires Mar 14, 1999
· previously WP4BKM(Novice)
ROSALINA MENDOZA
PO BOX 640, AGUADA, PR 00602
Seen Oct 31, 1994 → Apr 4, 1997 · 6 discs NP4BX
· Technician Plus · issued Mar 14, 1989, expires Mar 14, 1999
· previously WP4BKM(Novice)
ROSALINA MENDOZA
POB 640, AGUADA, PR 00602
Seen Sep 9, 1993 → May 3, 1994 · 2 discs NP4BX
· Technician · issued Mar 14, 1989, expires Mar 14, 1999
· previously WP4BKM(Novice)
ROSALINA MENDOZA
POB 640, AGUADA, PR 00602
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen May 27, 2010 → Oct 11, 2026 · 48 snapshots · as NP4BX
Rosalina Mendoza
14087 Sw 18th St, Miami, FL 33175
From scanned copies of the printed callbooks (government lists from 1913, then the Radio Amateur Callbook to 1997), read by OCR, so names and streets can carry typos. Each line is one or more editions in a row showing the same name at the same address.
1993 → 1994 · 2 editions NP4BX · class T
Rosalina Mendoza Pob 640, Aiuada, PR 00601 1993 p.498, 1994 p.524
1992 · 1 edition NP4BX · class T
Rosalina Mendoza Pob B40, Aguada Pr 00b01 1992 p.467
1988 → 1989 · 2 editions NP4BX · class T
Rosalina Mendoza 4367 Walsh St, Fort Knox, KY 40111 Winter 1988 p.420, Winter 1989 p.421
1987 · 1 edition NP4BX · class T
Rosalina Mendoza 43b7 Walsh St, Fort Knox, KY 40111 Winter 1987 p.410
1986 · 1 edition NP4BX · class T
Rosalina Mendoza 4jo7 Walsh St, Fort Knox, KY 40121 Winter 1986 p.411
1985 · 1 edition NP4BX · class T
Rosalina Mendoza 4j67 Alsh St, Fort Knox, KY 40111 Winter 1985 p.413
None → 1983 · 2 editions NP4BX · class T
Rosalina Sanchez Pob 462, Guayama, PR 00654 None p.330, Winter 1983 p.405
📡 On the Air: APRS, Digital & WSPR Spots
No APRS positions, PSK Reporter reports or WSPR spots for NP4BX in the last 24 hours. They show up here within seconds of NP4BX beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.